Rattlecock

1: A nasty bastard who advertizes his dick by desperately shaking it for everyone to see.
2: a Guy who wants to fuck so bad that he rattles his cock by shaking it around wildly in a desperate advertisement.
3:A man or guy who doesnt wear underwhear, so his cock rattles around wildly in his pants as he walks or struts around like a cock-of-the-walk.
4: Your dick is so old and hollowed out that it Rattles.

1: Uhg, i went to get on the bus today, and Bill Clinton was standing at the corner.
2: OMG! Bill Clinton is back! I could hear his Cock rattling from a Mile away!
3: Put on some underwear you Rattlecock!
4: My Grandpa is so old and has had so much tang in his life that all thats left is fosilized cum inside his cock, it Rattles when he walks.